填空一个哦，关于京剧的哈。

答案是"Anhui"

见资料"It is believed that Peking Opera gradually came into being after 1790 when the famous four Anhui opera troupes came to Beijing. "

“In the year 1790, four different performing troupes came through Peking. These troops were known as the Anhui Troupes and they performed in the Emperor's court. Their performance in 1790 is considered to be the inauguration date of the Beijing Opera.”

source: squidoo, wildchina

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